TELE33324 Lecture 9: classifying routing protocols
7 Nov 2016
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Document Summary
There are three ways to classify routing protocols. An autonomous system is a group of routers that belong to an organization and command the same routing policy. Ie sheridan college networks, and it dept sets the routing policy for the whole network. Sheridan"s isp would be having a separate system, ie bell, rogers, etc. An interior gateway protocol(igp) is a protocol that within an autonomous system they exchange information. The type of protocol used is an interior gateway protocol. Network information needs to be passed to the isp. The border router connected to the isp network has to exchange the routing protocol, that is done through the egp. Bgp=border gateway protocol, which is a specific type of exterior protocol. Classful routing protocols exchange only the network address but not the subnet mask. Classless routing protocols communicate both the network address and the snm. Classful routing protocols do not support variable subnetting.
